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Another more portable type is a box with an angled mirror projecting onto tracing paper placed on the glass top, the image being upright (but still reversed) as viewed from the back.
There are theories that occurrences of camera obscura effects (through tiny holes in tents or in screens of animal hide) inspired paleolithic cave paintings.
The image can be projected onto paper, and can then be traced to produce a highly accurate representation.
In order to produce a reasonably clear projected image, the aperture has to be about 1/100th the distance to the screen, or less.
However, it won't be safe to look directly at the sun during the partial eclipse, as this can damage your eyes or even blind you.The term "camera obscura" also refers to constructions or devices that make use of the principle within a box, tent or room.Camerae obscurae with a lens in the opening have been used since the second half of the 16th century and became popular as an aid for drawing and painting.You may want to experiment with widening the hole or even using a hole punch. One great method is holding binoculars up to the sun — but not pointing them at your or anyone else's eyes — while aiming the eyepiece on something bright and white, such as paper: But if you're feeling more adventurous, have a telescope handy, and aim to please a crowd, read these instructions to build a "sun funnel" that NASA, Nightwise, and the American Astronomical Society put together.The device may not look pretty, but it will inexpensively and crisply project an image of the eclipsing sun onto a sheet for all to see.